/**
  ******************************************************************************
  * @file    sd_diskio.c
  * @author  MCD Application Team
  * @brief   SD Disk I/O driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics International N.V.
  * All rights reserved.</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution of source code must retain the above copyright notice,
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of STMicroelectronics nor the names of other
  *    contributors to this software may be used to endorse or promote products
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under
  *    this license is void and will automatically terminate your rights under
  *    this license.
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "ff_gen_drv.h"
#include "sd_diskio_dma_rtos.h"


/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define QUEUE_SIZE         (uint32_t) 10
#define READ_CPLT_MSG      (uint32_t) 1
#define WRITE_CPLT_MSG     (uint32_t) 2

/*
 * the following Timeout is useful to give the control back to the applications
 * in case of errors in either BSP_SD_ReadCpltCallback() or BSP_SD_WriteCpltCallback()
 * the value by default is as defined in the BSP platform driver otherwise 30 secs
 *
 */

#define SD_TIMEOUT 30 * 1000

#define SD_DEFAULT_BLOCK_SIZE 512

/**
  * @brief  SD status structure definition
  */
#define   MSD_OK                        ((uint8_t)0x00)
#define   MSD_ERROR                     ((uint8_t)0x01)
#define   MSD_ERROR_SD_NOT_PRESENT      ((uint8_t)0x02)

/*
 * Depending on the usecase, the SD card initialization could be done at the
 * application level, if it is the case define the flag below to disable
 * the BSP_SD_Init() call in the SD_Initialize().
 */

/* #define DISABLE_SD_INIT */

/* Private variables ---------------------------------------------------------*/
/* Disk status */
static volatile DSTATUS Stat = STA_NOINIT;

/* Private function prototypes -----------------------------------------------*/
static DSTATUS SD_CheckStatus(BYTE lun);
DSTATUS SD_initialize (BYTE);
DSTATUS SD_status (BYTE);
DRESULT SD_read (BYTE, BYTE*, DWORD, UINT);
#if _USE_WRITE == 1
  DRESULT SD_write (BYTE, const BYTE*, DWORD, UINT);
#endif /* _USE_WRITE == 1 */
#if _USE_IOCTL == 1
  DRESULT SD_ioctl (BYTE, BYTE, void*);
#endif  /* _USE_IOCTL == 1 */

const Diskio_drvTypeDef  SD_Driver =
{
  SD_initialize,
  SD_status,
  SD_read,
#if  _USE_WRITE == 1
  SD_write,
#endif /* _USE_WRITE == 1 */

#if  _USE_IOCTL == 1
  SD_ioctl,
#endif /* _USE_IOCTL == 1 */
};

/* Private functions ---------------------------------------------------------*/
static DSTATUS SD_CheckStatus(BYTE lun)
{
  Stat = STA_NOINIT;

//  if(BSP_SD_GetCardState() == MSD_OK)
//  {
//    Stat &= ~STA_NOINIT;
//  }

  return Stat;
}

/**
  * @brief  Initializes a Drive
  * @param  lun : not used
  * @retval DSTATUS: Operation status
  */
DSTATUS SD_initialize(BYTE lun)
{
  Stat = STA_NOINIT;
#if !defined(DISABLE_SD_INIT)

//  if(BSP_SD_Init() == MSD_OK)
//  {
//    Stat = SD_CheckStatus(lun);
//  }

#else
  Stat = SD_CheckStatus(lun);
#endif
  return Stat;
}

/**
  * @brief  Gets Disk Status
  * @param  lun : not used
  * @retval DSTATUS: Operation status
  */
DSTATUS SD_status(BYTE lun)
{
  return SD_CheckStatus(lun);
}

/**
  * @brief  Reads Sector(s)
  * @param  lun : not used
  * @param  *buff: Data buffer to store read data
  * @param  sector: Sector address (LBA)
  * @param  count: Number of sectors to read (1..128)
  * @retval DRESULT: Operation result
  */
DRESULT SD_read(BYTE lun, BYTE *buff, DWORD sector, UINT count)
{
  DRESULT res = RES_ERROR;

//  if(BSP_SD_ReadBlocks((uint32_t*)buff,
//                       (uint32_t) (sector),
//                       count, SD_TIMEOUT) == MSD_OK)
//  {
//    /* wait until the read operation is finished */
//    while(BSP_SD_GetCardState()!= MSD_OK)
//    {
//    }
//    res = RES_OK;
//  }

  return res;
}

/**
  * @brief  Writes Sector(s)
  * @param  lun : not used
  * @param  *buff: Data to be written
  * @param  sector: Sector address (LBA)
  * @param  count: Number of sectors to write (1..128)
  * @retval DRESULT: Operation result
  */
#if _USE_WRITE == 1
DRESULT SD_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
{
  DRESULT res = RES_ERROR;

//  if(BSP_SD_WriteBlocks((uint32_t*)buff,
//                        (uint32_t)(sector),
//                        count, SD_TIMEOUT) == MSD_OK)
//  {
//	/* wait until the Write operation is finished */
//    while(BSP_SD_GetCardState() != MSD_OK)
//    {
//    }
//    res = RES_OK;
//  }

  return res;
}
#endif /* _USE_WRITE == 1 */

/**
  * @brief  I/O control operation
  * @param  lun : not used
  * @param  cmd: Control code
  * @param  *buff: Buffer to send/receive control data
  * @retval DRESULT: Operation result
  */
#if _USE_IOCTL == 1
DRESULT SD_ioctl(BYTE lun, BYTE cmd, void *buff)
{
  DRESULT res = RES_ERROR;
//  BSP_SD_CardInfo CardInfo;

//  if (Stat & STA_NOINIT) return RES_NOTRDY;

//  switch (cmd)
//  {
//  /* Make sure that no pending write process */
//  case CTRL_SYNC :
//    res = RES_OK;
//    break;

//  /* Get number of sectors on the disk (DWORD) */
//  case GET_SECTOR_COUNT :
//    BSP_SD_GetCardInfo(&CardInfo);
//    *(DWORD*)buff = CardInfo.LogBlockNbr;
//    res = RES_OK;
//    break;

//  /* Get R/W sector size (WORD) */
//  case GET_SECTOR_SIZE :
//    BSP_SD_GetCardInfo(&CardInfo);
//    *(WORD*)buff = CardInfo.LogBlockSize;
//    res = RES_OK;
//    break;

//  /* Get erase block size in unit of sector (DWORD) */
//  case GET_BLOCK_SIZE :
//    BSP_SD_GetCardInfo(&CardInfo);
//    *(DWORD*)buff = CardInfo.LogBlockSize / SD_DEFAULT_BLOCK_SIZE;
//	res = RES_OK;
//    break;

//  default:
//    res = RES_PARERR;
//  }

  return res;
}
#endif /* _USE_IOCTL == 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

